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Property and Equipment (Tables)
9 Months Ended
Sep. 30, 2016
Property Plant And Equipment [Abstract]  
Property and Equipment

Property and equipment consisted of the following at September 30, 2016 and December 31, 2015 (in thousands):

 

 

September 30,

 

 

December 31,

 

 

2016

 

 

2015

 

Equipment

$

6,808,201

 

 

$

6,963,148

 

Oil and natural gas properties

 

201,450

 

 

 

200,923

 

Buildings

 

96,950

 

 

 

96,470

 

Land

 

22,370

 

 

 

22,370

 

 

 

7,128,971

 

 

 

7,282,911

 

Less accumulated depreciation, depletion and impairment

 

(3,617,231

)

 

 

(3,362,203

)

Property and equipment, net

$

3,511,740

 

 

$

3,920,708